@BrianZ, my original idea was also to put the filling tee inside for exactly the reasons you mentioned. However, others see more advantage to working from the outside. It's a potato-potahto thing--re… (View Post)
@Tampakayaker, my understanding is the pesky one-way valve would prevent you from drawing fluid back through the boiler and out the drain. Drawing it in the other direction won't work either as the v… (View Post)
As promised long ago here it is... While I had naively hoped to keep this to a page or two, I opted for details (including graphics) over brevity. I've also included two appendices offering additiona… (View Post)
@ChanW, I don't think you are missing anything--so long as you have an inlet and an outlet in close proximity, I doubt the system cares where you introduce and drain the glycol. The advantage of the … (View Post)